package com.example.sell.controller;

import com.example.sell.VO.ProductInfoVO;
import com.example.sell.VO.ProductVO;
import com.example.sell.VO.ResultVO;
import com.example.sell.dataobject.ProductCategory;
import com.example.sell.dataobject.ProductInfo;
import com.example.sell.service.CategoryService;
import com.example.sell.service.ProductService;
import com.example.sell.utils.ResultVOUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/buyer/product")
public class BuyerProductController {
    @Autowired
    private ProductService productService;
    @Autowired
    private CategoryService categoryService;

    @GetMapping("/list")
//    @Cacheable(cacheNames = "product",key="123")
    @Cacheable(cacheNames = "product",key="#sellerId",condition = "#sellerId.length()>3",unless="#result.getCode()!=0")
    public ResultVO list(@RequestParam("sellerId")String sellerId){
//    public ResultVO list(){
        //1.查询所有的上架商品
        List<ProductInfo> productInfoList=productService.findUpAll();
        //2.查询类目（一次性查询）
//        List<Integer> categoryTypeList=new ArrayList<>();
//        for(ProductInfo productinfo:productInfoList){
//            categoryTypeList.add(productinfo.getCategoryType());
//        }
        List<Integer> categoryTypeList=productInfoList.stream()
                .map(e->e.getCategoryType())
                .collect(Collectors.toList());
        List<ProductCategory> productCategoryList=categoryService.findByCategoryTypeIn(categoryTypeList);
        //3.数据拼装
        List<ProductVO> productVOList=new ArrayList<>();

        for (ProductCategory productCategory:productCategoryList){
            ProductVO productVo=new ProductVO();
            productVo.setCategoryType(productCategory.getCategoryType());
            productVo.setCategoryName(productCategory.getCategoryName());

            List<ProductInfoVO> productInfoVOList=new ArrayList<>();
            for(ProductInfo productInfo:productInfoList){
                if(productInfo.getCategoryType().equals(productCategory.getCategoryType())){
                    ProductInfoVO productInfoVO=new ProductInfoVO();
                    BeanUtils.copyProperties(productInfo,productInfoVO);
                    productInfoVOList.add(productInfoVO);
                }
            }
            productVo.setProductInfoVOList(productInfoVOList);
            productVOList.add(productVo);
        }
        return ResultVOUtil.success(productVOList);
    }
}
